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Design Patterns Damian Gordon.

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Presentation on theme: "Design Patterns Damian Gordon."— Presentation transcript:

1 Design Patterns Damian Gordon

2 Design Patterns A Design Pattern is a general reusable solution to a commonly occurring problem within a given context in software design.

3 Design Patterns It is not a finished design that can be transformed directly into source or machine code. It is a description or template for how to solve a problem that can be used in many different situations.

4 Design Patterns Design patterns are formalized best practices that the programmer can use to solve common problems when designing an application or system.

5 Design Patterns Object-oriented design patterns typically show relationships and interactions between classes or objects, without specifying the final application classes or objects that are involved.

6 Design Patterns Patterns that imply mutable state may be unsuited for functional programming languages, some patterns can be rendered unnecessary in languages that have built-in support for solving the problem they are trying to solve, and object-oriented patterns are not necessarily suitable for non-object-oriented languages.

7 Sample Design Patterns
Type Description Algorithm strategy patterns Addressing concerns related to high-level strategies. Computational design patterns Addressing concerns related to key computation identification. Execution patterns Addressing concerns related to lower-level support of application execution. Implementation strategy patterns Addressing concerns related to implementing source code. Structural design patterns Addressing concerns related to global structures.

8 etc.


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